Finding the Fourth Proportional to 104,404.32, 143,972.10 and 89,346.96

Step by Step Solution

1. Step 1: Write the proportion equation
   104,404.32 : 143,972.10 = 89,346.96 : x
2. Step 2: Convert to fraction form
   104,404.32/143,972.10 = 89,346.96/x
3. Step 3: Cross multiply
   104,404.32x = 143,972.10 × 89,346.96
4. Step 4: Simplify right side
   104,404.32x = 12,863,469,459.82
5. Step 5: Solve for x
   x = 12,863,469,459.82/104,404.32
6. Step 6: Final answer
   x = 123,208.21